We’re told the details in the book, which depicts the campaign as inept, “could only have come from someone in the inner circle.” Dennis Cheng, the finance director of Clinton’s presidential campaign, has been sending out messages to determine where the leaks came from.

One source said, “The knives are out to find the people who spoke about the campaign to the authors of this book. Dennis has been texting prominent campaign staffers, asking who talked. He’s on a witch hunt to find out who talked to save their own skin, throwing Hillary and her campaign manager Robby Mook under the bus.”

The source added, “There’s some speculation that Huma Abedin cooperated to save her own reputation. However, she and Hillary are still very close.”

Also, Huma is writing her own book, and is said to be seeking $2 million for it.

She had an aide access the campaign’s server to check the emails from top staffers. “She believed her campaign had failed her . . . and she wanted to see who was talking to who, who was leaking to who.”

On April 27, Clinton’s top aides are attending a “thank-you party” at the apartment of Charles Myers. The source added, “Everybody will be eyeing everyone else suspiciously.”

A rep for Clinton said, “It was our campaign. We lived it. So we don’t need a book to know what really happened, and what’s in there that’s flat-out made up. Huma didn’t talk to them.”